54380780

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1\times {\mathrm{223}}^1$

素因数の和:458

約数の個数: 48

約数和(自身を含む): 116847360

約数和(自身を除く): 62466580

約数列:

[1, 2, 4, 5, 10, 20, 89, 137, 178, 223, 274, 356, 445, 446, 548, 685, 890, 892, 1115, 1370, 1780, 2230, 2740, 4460, 12193, 19847, 24386, 30551, 39694, 48772, 60965, 61102, 79388, 99235, 121930, 122204, 152755, 198470, 243860, 305510, 396940, 611020, 2719039, 5438078, 10876156, 13595195, 27190390, 54380780]

約数ペア:

[(1, 54380780), (2, 27190390), (4, 13595195), (5, 10876156), (10, 5438078), (20, 2719039), (89, 611020), (137, 396940), (178, 305510), (223, 243860), (274, 198470), (356, 152755), (445, 122204), (446, 121930), (548, 99235), (685, 79388), (890, 61102), (892, 60965), (1115, 48772), (1370, 39694), (1780, 30551), (2230, 24386), (2740, 19847), (4460, 12193)]